From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 29 Mar 2012 18:57:08 +0000 (+0200)
Subject: blkcg: change a spin_lock() to spin_lock_irq()
X-Git-Tag: v3.5-rc1~42^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a5567932fc926739e29e98487128080f40c61710;p=pandora-kernel.git

blkcg: change a spin_lock() to spin_lock_irq()

Smatch complains that we re-enable IRQs twice.  It looks like we forgot
to disable them here on the spin_trylock() failure path.  This was added
in 9f13ef678e "blkcg: use double locking instead of RCU for blkg
synchronization".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>`
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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